Exactly as the title says really! AF was due on Monday, I tested on Saturday (a but early I know) and got a BFN, tested on Monday and got a BFN with a Clearblue Plus (supposed to show 4 days before AF is due), tested today with the 2nd Clearblue Plus as I felt ever so slightly (and I really mean ever so slightly) queasy and got a BFN, tested about an hour later with a First Response and got a not really that faint BFP.
Thoughts please ladies!!! I googled false positives with first response tests and there were lots of stories about them so am too scared to even get remotely excited!